topic Re: Loop Problem in Application Development and Automation Discussions

Loop Problem

Former Member — Tue, 03 Nov 2009 15:30:43 GMT

hi,

i have 4 records in internal table and using a loop.

If on record 4, field 1 EQ 0 then want to rerun the loop FROM START.

Please can anyone guide me how to do this << Removed >>

Thanks

Moderator message - Please don not use words like "urjent"

Edited by: Rob Burbank on Nov 3, 2009 10:33 AM

Re: Loop Problem

ThomasZloch — Tue, 03 Nov 2009 15:35:23 GMT

Wrap it inside a WHILE / ENDWHILE, but beware of endless loops

Thomas

Re: Loop Problem

Former Member — Tue, 03 Nov 2009 15:36:58 GMT

how to do it, please give me a snippet.

It is LOOP AT statement not WHILE.

Re: Loop Problem

Former Member — Tue, 03 Nov 2009 15:38:06 GMT

wrap the loop inside a while endwhile...

Re: Loop Problem

Former Member — Tue, 03 Nov 2009 15:39:50 GMT

please write a sample code using LOOP at statement and demonstrate.

Re: Loop Problem

Former Member — Tue, 03 Nov 2009 15:40:33 GMT

You're going to have to give some more information. Thge logic you have given will simply produce an infinite loop.

Rob

Re: Loop Problem

awin_prabhu — Tue, 03 Nov 2009 15:53:11 GMT

Hi Merc,

See below code.

DATA: BEGIN OF itab OCCURS 0,

data TYPE i,

END OF itab,

wa LIKE itab.

wa-data = '1'.

APPEND wa TO itab.

wa-data = '2'.

APPEND wa TO itab.

wa-data = '3'.

APPEND wa TO itab.

wa-data = '0'.

APPEND wa TO itab.

READ TABLE itab INTO wa INDEX 4. " Initially read 4th record

WHILE wa-data = 0. " Loop while 4th record is Zero

LOOP AT itab INTO wa.

" Start your code

IF wa-data = 0.

wa-data = 1.

MODIFY itab FROM wa INDEX 4 TRANSPORTING data. " Modified 4th record to avoid infinite loop

ENDIF.

ENDLOOP.

" End your code

READ TABLE itab INTO wa INDEX 4. " Before going to check while condition read 4th record

ENDWHILE.

Thanks,

Edited by: Sap Fan on Nov 3, 2009 4:53 PM

Edited by: Sap Fan on Nov 3, 2009 4:55 PM